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Enhancement of visual selection during transient disruption of parietal cortex.

Enhancement of visual selection during transient disruption of parietal cortex.

Chambers CD., Stokes MG., Janko NE., Mattingley JB.

Selective attention is critical for guiding human behavior. Recent theories have described the process of attention as a biased competition between sensory inputs, but questions remain concerning the anatomical basis of these competitive mechanisms. Using transcranial magnetic stimulation, we found that disruption of the right parietal cortex improved the perception of relevant stimuli in competitive visual displays. This enhancement of selective attention is consistent with previous observations and suggests a crucial role of the superior parietal lobule and supramarginal gyrus in mediating competition between visual inputs.